libgo/mksysinfo.sh

   1 #!/bin/sh
   2
   3 # Copyright 2009 The Go Authors. All rights reserved.
   4 # Use of this source code is governed by a BSD-style
   5 # license that can be found in the LICENSE file.
   6
   7 # Create sysinfo.go from gen-sysinfo.go and errno.i.
   8
   9 # This shell script creates the sysinfo.go file which holds types and
  10 # constants extracted from the system header files.  This reads the
  11 # raw data from gen-sysinfo.go which is generated using the
  12 # -fdump-go-spec option.
  13
  14 # This currently exposes some names that ideally should not be
  15 # exposed, as they match grep patterns.  E.g., WCHAR_MIN gets exposed
  16 # because it starts with W, like the wait flags.
  17
  18 OUT=tmp-sysinfo.go
  19
  20 set -e
  21
  22 echo 'package syscall' > ${OUT}
  23 echo 'import "unsafe"' >> ${OUT}
  24 echo 'type _ unsafe.Pointer' >> ${OUT}
  25
  26 # Get all the consts and types, skipping ones which could not be
  27 # represented in Go and ones which we need to rewrite.  We also skip
  28 # function declarations, as we don't need them here.  All the symbols
  29 # will all have a leading underscore.
  30 grep -v '^// ' gen-sysinfo.go | \
  31   grep -v '^func' | \
  32   grep -v '^type _timeval ' | \
  33   grep -v '^type _timespec_t ' | \
  34   grep -v '^type _timespec ' | \
  35   grep -v '^type _timestruc_t ' | \
  36   grep -v '^type _epoll_' | \
  37   grep -v '^type _*locale[_ ]' | \
  38   grep -v 'in6_addr' | \
  39   grep -v 'sockaddr_in6' | \
  40   sed -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
  41       -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  42       -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
  43       -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
  44     >> ${OUT}
  45
  46 # On AIX, the _arpcom struct, is filtered by the above grep sequence, as it as
  47 # a field of type _in6_addr, but other types depend on _arpcom, so we need to
  48 # put it back.
  49 grep '^type _arpcom ' gen-sysinfo.go | \
  50   sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
  51
  52 # Same on Solaris for _mld_hdr_t.
  53 grep '^type _mld_hdr_t ' gen-sysinfo.go | \
  54   sed -e 's/_in6_addr/[16]byte/' >> ${OUT}
  55
  56 # The errno constants.  These get type Errno.
  57   egrep '#define E[A-Z0-9_]+ ' errno.i | \
  58   sed -e 's/^#define \(E[A-Z0-9_]*\) .*$/const \1 = Errno(_\1)/' >> ${OUT}
  59
  60 # The O_xxx flags.
  61 egrep '^const _(O|F|FD)_' gen-sysinfo.go | \
  62   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
  63 if ! grep '^const O_ASYNC' ${OUT} >/dev/null 2>&1; then
  64   echo "const O_ASYNC = 0" >> ${OUT}
  65 fi
  66 if ! grep '^const O_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  67   echo "const O_CLOEXEC = 0" >> ${OUT}
  68 fi
  69
  70 # The os package requires F_DUPFD_CLOEXEC to be defined.
  71 if ! grep '^const F_DUPFD_CLOEXEC' ${OUT} >/dev/null 2>&1; then
  72   echo "const F_DUPFD_CLOEXEC = 0" >> ${OUT}
  73 fi
  74
  75 # AIX 7.1 is a 64 bits value for _FCLOEXEC (referenced by O_CLOEXEC)
  76 # which leads to a constant overflow when using O_CLOEXEC in some
  77 # go code. Issue wan not present in 6.1 (no O_CLOEXEC) and is no
  78 # more present in 7.2 (_FCLOEXEC is a 32 bit value).
  79 if test "${GOOS}" = "aix" && `oslevel | grep -q "^7.1"`; then
  80     sed -e 's/const __FCLOEXEC = .*/const __FCLOEXEC = 0/' ${OUT} > ${OUT}-2
  81     mv ${OUT}-2 ${OUT}
  82 fi
  83
  84 # These flags can be lost on i386 GNU/Linux when using
  85 # -D_FILE_OFFSET_BITS=64, because we see "#define F_SETLK F_SETLK64"
  86 # before we see the definition of F_SETLK64.
  87 for flag in F_GETLK F_SETLK F_SETLKW; do
  88   if ! grep "^const ${flag} " ${OUT} >/dev/null 2>&1 \
  89       && grep "^const ${flag}64 " ${OUT} >/dev/null 2>&1; then
  90     echo "const ${flag} = ${flag}64" >> ${OUT}
  91   fi
  92 done
  93
  94 # The Flock_t struct for fcntl.
  95 grep '^type _flock ' gen-sysinfo.go | \
  96     sed -e 's/type _flock/type Flock_t/' \
  97       -e 's/l_type/Type/' \
  98       -e 's/l_whence/Whence/' \
  99       -e 's/l_start/Start/' \
 100       -e 's/l_len/Len/' \
 101       -e 's/l_pid/Pid/' \
 102     >> ${OUT}
 103
 104 # The signal numbers.
 105 grep '^const _SIG[^_]' gen-sysinfo.go | \
 106   grep -v '^const _SIGEV_' | \
 107   sed -e 's/^\(const \)_\(SIG[^= ]*\)\(.*\)$/\1\2 = Signal(_\2)/' >> ${OUT}
 108 if ! grep '^const SIGPOLL ' ${OUT} >/dev/null 2>&1; then
 109   if grep '^const SIGIO ' ${OUT} > /dev/null 2>&1; then
 110     echo "const SIGPOLL = SIGIO" >> ${OUT}
 111   fi
 112 fi
 113 if ! grep '^const SIGCLD ' ${OUT} >/dev/null 2>&1; then
 114   if grep '^const SIGCHLD ' ${OUT} >/dev/null 2>&1; then
 115     echo "const SIGCLD = SIGCHLD" >> ${OUT}
 116   fi
 117 fi
 118
 119 # The syscall numbers.  We force the names to upper case.
 120 grep '^const _SYS_' gen-sysinfo.go | \
 121   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
 122   while read sys; do
 123     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 124     echo "const $sup = _$sys" >> ${OUT}
 125   done
 126
 127 # The GNU/Linux support wants to use SYS_GETDENTS64 if available.
 128 if ! grep '^const SYS_GETDENTS ' ${OUT} >/dev/null 2>&1; then
 129   echo "const SYS_GETDENTS = 0" >> ${OUT}
 130 fi
 131 if ! grep '^const SYS_GETDENTS64 ' ${OUT} >/dev/null 2>&1; then
 132   echo "const SYS_GETDENTS64 = 0" >> ${OUT}
 133 fi
 134
 135 # Stat constants.
 136 grep '^const _S_' gen-sysinfo.go | \
 137   sed -e 's/^\(const \)_\(S_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 138
 139 # Mmap constants.
 140 grep '^const _PROT_' gen-sysinfo.go | \
 141   sed -e 's/^\(const \)_\(PROT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 142 grep '^const _MAP_' gen-sysinfo.go | \
 143   sed -e 's/^\(const \)_\(MAP_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 144 grep '^const _MADV_' gen-sysinfo.go | \
 145   sed -e 's/^\(const \)_\(MADV_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 146 grep '^const _MCL_' gen-sysinfo.go | \
 147   sed -e 's/^\(const \)_\(MCL_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 148
 149 # Process status constants.
 150 grep '^const _W' gen-sysinfo.go |
 151   sed -e 's/^\(const \)_\(W[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 152 # WSTOPPED was introduced in glibc 2.3.4.
 153 if ! grep '^const _WSTOPPED = ' gen-sysinfo.go >/dev/null 2>&1; then
 154   if grep '^const _WUNTRACED = ' gen-sysinfo.go > /dev/null 2>&1; then
 155     echo 'const WSTOPPED = _WUNTRACED' >> ${OUT}
 156   else
 157     echo 'const WSTOPPED = 2' >> ${OUT}
 158   fi
 159 fi
 160 if grep '^const ___WALL = ' gen-sysinfo.go >/dev/null 2>&1 \
 161    && ! grep '^const _WALL = ' gen-sysinfo.go >/dev/null 2>&1; then
 162   echo 'const WALL = ___WALL' >> ${OUT}
 163 fi
 164
 165 # Networking constants.
 166 egrep '^const _(AF|ARPHRD|ETH|IN|SOCK|SOL|SO|IPPROTO|TCP|IP|IPV6)_' gen-sysinfo.go |
 167   sed -e 's/^\(const \)_\([^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 168 grep '^const _SOMAXCONN' gen-sysinfo.go |
 169   sed -e 's/^\(const \)_\(SOMAXCONN[^= ]*\)\(.*\)$/\1\2 = _\2/' \
 170     >> ${OUT}
 171 grep '^const _SHUT_' gen-sysinfo.go |
 172   sed -e 's/^\(const \)_\(SHUT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 173
 174 # The net package requires some const definitions.
 175 for m in IP_PKTINFO IPV6_V6ONLY IPPROTO_IPV6 IPV6_JOIN_GROUP IPV6_LEAVE_GROUP IPV6_TCLASS SO_REUSEPORT; do
 176   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 177     echo "const $m = 0" >> ${OUT}
 178   fi
 179 done
 180 for m in SOCK_CLOEXEC SOCK_NONBLOCK; do
 181   if ! grep "^const $m " ${OUT} >/dev/null 2>&1; then
 182     echo "const $m = -1" >> ${OUT}
 183   fi
 184 done
 185
 186 # The syscall package requires AF_LOCAL.
 187 if ! grep '^const AF_LOCAL ' ${OUT} >/dev/null 2>&1; then
 188   if grep '^const AF_UNIX ' ${OUT} >/dev/null 2>&1; then
 189     echo "const AF_LOCAL = AF_UNIX" >> ${OUT}
 190   fi
 191 fi
 192
 193 # sysconf constants.
 194 grep '^const __SC' gen-sysinfo.go |
 195   sed -e 's/^\(const \)__\(SC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 196
 197 # pathconf constants.
 198 grep '^const __PC' gen-sysinfo.go |
 199   sed -e 's/^\(const \)__\(PC[^= ]*\)\(.*\)$/\1\2 = __\2/' >> ${OUT}
 200
 201 # The PATH_MAX constant.
 202 if grep '^const _PATH_MAX ' gen-sysinfo.go >/dev/null 2>&1; then
 203   echo 'const PathMax = _PATH_MAX' >> ${OUT}
 204 fi
 205
 206 # epoll constants.
 207 grep '^const _EPOLL' gen-sysinfo.go |
 208   grep -v EPOLLET |
 209   sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 210 # Make sure EPOLLET is positive.
 211 if grep '^const _EPOLLET = [0-9]' gen-sysinfo.go >/dev/null 2>&1; then
 212   grep '^const _EPOLLET ' gen-sysinfo.go |
 213     sed -e 's/^\(const \)_\(EPOLL[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 214 else
 215   echo "const EPOLLET = 0x80000000" >> ${OUT}
 216 fi
 217 # Make sure EPOLLRDHUP and EPOLL_CLOEXEC are defined.
 218 if ! grep '^const EPOLLRDHUP' ${OUT} >/dev/null 2>&1; then
 219   echo "const EPOLLRDHUP = 0x2000" >> ${OUT}
 220 fi
 221 if ! grep '^const EPOLL_CLOEXEC' ${OUT} >/dev/null 2>&1; then
 222   echo "const EPOLL_CLOEXEC = 02000000" >> ${OUT}
 223 fi
 224
 225 # Prctl constants.
 226 grep '^const _PR_' gen-sysinfo.go |
 227   sed -e 's/^\(const \)_\(PR_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 228
 229 # Ptrace constants.
 230 grep '^const _PTRACE' gen-sysinfo.go |
 231   sed -e 's/^\(const \)_\(PTRACE[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 232 # We need some ptrace options that are not defined in older versions
 233 # of glibc.
 234 if ! grep '^const PTRACE_SETOPTIONS' ${OUT} > /dev/null 2>&1; then
 235   echo "const PTRACE_SETOPTIONS = 0x4200" >> ${OUT}
 236 fi
 237 if ! grep '^const PTRACE_O_TRACESYSGOOD' ${OUT} > /dev/null 2>&1; then
 238   echo "const PTRACE_O_TRACESYSGOOD = 0x1" >> ${OUT}
 239 fi
 240 if ! grep '^const PTRACE_O_TRACEFORK' ${OUT} > /dev/null 2>&1; then
 241   echo "const PTRACE_O_TRACEFORK = 0x2" >> ${OUT}
 242 fi
 243 if ! grep '^const PTRACE_O_TRACEVFORK' ${OUT} > /dev/null 2>&1; then
 244   echo "const PTRACE_O_TRACEVFORK = 0x4" >> ${OUT}
 245 fi
 246 if ! grep '^const PTRACE_O_TRACECLONE' ${OUT} > /dev/null 2>&1; then
 247   echo "const PTRACE_O_TRACECLONE = 0x8" >> ${OUT}
 248 fi
 249 if ! grep '^const PTRACE_O_TRACEEXEC' ${OUT} > /dev/null 2>&1; then
 250   echo "const PTRACE_O_TRACEEXEC = 0x10" >> ${OUT}
 251 fi
 252 if ! grep '^const PTRACE_O_TRACEVFORKDONE' ${OUT} > /dev/null 2>&1; then
 253   echo "const PTRACE_O_TRACEVFORKDONE = 0x20" >> ${OUT}
 254 fi
 255 if ! grep '^const PTRACE_O_TRACEEXIT' ${OUT} > /dev/null 2>&1; then
 256   echo "const PTRACE_O_TRACEEXIT = 0x40" >> ${OUT}
 257 fi
 258 if ! grep '^const PTRACE_O_MASK' ${OUT} > /dev/null 2>&1; then
 259   echo "const PTRACE_O_MASK = 0x7f" >> ${OUT}
 260 fi
 261 if ! grep '^const _PTRACE_GETEVENTMSG' ${OUT} > /dev/null 2>&1; then
 262   echo "const PTRACE_GETEVENTMSG = 0x4201" >> ${OUT}
 263 fi
 264 if ! grep '^const PTRACE_EVENT_FORK' ${OUT} > /dev/null 2>&1; then
 265   echo "const PTRACE_EVENT_FORK = 1" >> ${OUT}
 266 fi
 267 if ! grep '^const PTRACE_EVENT_VFORK' ${OUT} > /dev/null 2>&1; then
 268   echo "const PTRACE_EVENT_VFORK = 2" >> ${OUT}
 269 fi
 270 if ! grep '^const PTRACE_EVENT_CLONE' ${OUT} > /dev/null 2>&1; then
 271   echo "const PTRACE_EVENT_CLONE = 3" >> ${OUT}
 272 fi
 273 if ! grep '^const PTRACE_EVENT_EXEC' ${OUT} > /dev/null 2>&1; then
 274   echo "const PTRACE_EVENT_EXEC = 4" >> ${OUT}
 275 fi
 276 if ! grep '^const PTRACE_EVENT_VFORK_DONE' ${OUT} > /dev/null 2>&1; then
 277   echo "const PTRACE_EVENT_VFORK_DONE = 5" >> ${OUT}
 278 fi
 279 if ! grep '^const PTRACE_EVENT_EXIT' ${OUT} > /dev/null 2>&1; then
 280   echo "const PTRACE_EVENT_EXIT = 6" >> ${OUT}
 281 fi
 282 if ! grep '^const _PTRACE_TRACEME' ${OUT} > /dev/null 2>&1; then
 283   echo "const _PTRACE_TRACEME = 0" >> ${OUT}
 284 fi
 285
 286 # A helper function that prints a structure from gen-sysinfo.go with the first
 287 # letter of the field names in upper case.  $1 is the name of structure.  If $2
 288 # is not empty, the structure or type is renamed to $2.
 289 upcase_fields () {
 290   name="$1"
 291   def=`grep "^type $name " gen-sysinfo.go`
 292   fields=`echo $def | sed -e 's/^[^{]*{\(.*\)}$/\1/'`
 293   prefix=`echo $def | sed -e 's/{.*//'`
 294   if test "$2" != ""; then
 295     prefix=`echo $prefix | sed -e "s/$1/$2/"`
 296   fi
 297   if test "$fields" != ""; then
 298     nfields=
 299     while test -n "$fields"; do
 300       field=`echo $fields | sed -e 's/^\([^;]*\);.*$/\1/'`
 301       fields=`echo $fields | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 302       # capitalize the next character.
 303       f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 304       r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 305       f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 306       field="$f$r"
 307       nfields="$nfields $field;"
 308     done
 309     echo "${prefix} {$nfields }"
 310   fi
 311 }
 312
 313 # The registers returned by PTRACE_GETREGS.  This is probably
 314 # GNU/Linux specific; it should do no harm if there is no
 315 # _user_regs_struct.
 316 regs=`grep '^type _user_regs_struct struct' gen-sysinfo.go || true`
 317 if test "$regs" = ""; then
 318   # mips*
 319   regs=`grep '^type _pt_regs struct' gen-sysinfo.go || true`
 320 fi
 321 if test "$regs" != ""; then
 322   regs=`echo $regs | sed -e 's/type _pt_regs struct//'`
 323   regs=`echo $regs |
 324     sed -e 's/type __*user_regs_struct struct //' -e 's/[{}]//g'`
 325   regs=`echo $regs | sed -e s'/^ *//'`
 326   nregs=
 327   while test -n "$regs"; do
 328     field=`echo $regs | sed -e 's/^\([^;]*\);.*$/\1/'`
 329     regs=`echo $regs | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 330     # Capitalize the first character of the field.
 331     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 332     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 333     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 334     field="$f$r"
 335     field=`echo "$field" | sed \
 336       -e 's/__user_psw_struct/PtracePsw/' \
 337       -e 's/__user_fpregs_struct/PtraceFpregs/' \
 338       -e 's/__user_per_struct/PtracePer/'`
 339     nregs="$nregs $field;"
 340   done
 341   echo "type PtraceRegs struct {$nregs }" >> ${OUT}
 342 fi
 343
 344 # Some basic types.
 345 echo 'type Size_t _size_t' >> ${OUT}
 346 echo "type Ssize_t _ssize_t" >> ${OUT}
 347 if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
 348   echo "type Offset_t _off64_t" >> ${OUT}
 349 else
 350   echo "type Offset_t _off_t" >> ${OUT}
 351 fi
 352 echo "type Mode_t _mode_t" >> ${OUT}
 353 echo "type Pid_t _pid_t" >> ${OUT}
 354 echo "type Uid_t _uid_t" >> ${OUT}
 355 echo "type Gid_t _gid_t" >> ${OUT}
 356 echo "type Socklen_t _socklen_t" >> ${OUT}
 357
 358 # The C int type.
 359 sizeof_int=`grep '^const ___SIZEOF_INT__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 360 if test "$sizeof_int" = "4"; then
 361   echo "type _C_int int32" >> ${OUT}
 362   echo "type _C_uint uint32" >> ${OUT}
 363 elif test "$sizeof_int" = "8"; then
 364   echo "type _C_int int64" >> ${OUT}
 365   echo "type _C_uint uint64" >> ${OUT}
 366 else
 367   echo 1>&2 "mksysinfo.sh: could not determine size of int (got $sizeof_int)"
 368   exit 1
 369 fi
 370
 371 # The C long type, needed because that is the type that ptrace returns.
 372 sizeof_long=`grep '^const ___SIZEOF_LONG__ = ' gen-sysinfo.go | sed -e 's/.*= //'`
 373 if test "$sizeof_long" = "4"; then
 374   echo "type _C_long int32" >> ${OUT}
 375   echo "type _C_ulong uint32" >> ${OUT}
 376 elif test "$sizeof_long" = "8"; then
 377   echo "type _C_long int64" >> ${OUT}
 378   echo "type _C_ulong uint64" >> ${OUT}
 379 else
 380   echo 1>&2 "mksysinfo.sh: could not determine size of long (got $sizeof_long)"
 381   exit 1
 382 fi
 383
 384 # Solaris 2 needs _u?pad128_t, but its default definition in terms of long
 385 # double is commented by -fdump-go-spec.
 386 if grep "^// type _pad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 387   echo "type _pad128_t struct { _l [4]int32; }" >> ${OUT}
 388 fi
 389 if grep "^// type _upad128_t" gen-sysinfo.go > /dev/null 2>&1; then
 390   echo "type _upad128_t struct { _l [4]uint32; }" >> ${OUT}
 391 fi
 392
 393 # The time_t type.
 394 if grep '^type _time_t ' gen-sysinfo.go > /dev/null 2>&1; then
 395   echo 'type Time_t _time_t' >> ${OUT}
 396 fi
 397
 398 # The time structures need special handling: we need to name the
 399 # types, so that we can cast integers to the right types when
 400 # assigning to the structures.
 401 timeval=`grep '^type _timeval ' gen-sysinfo.go`
 402 timeval_sec=`echo $timeval | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 403 timeval_usec=`echo $timeval | sed -n -e 's/^.*tv_usec \([^ ]*\);.*$/\1/p'`
 404 echo "type Timeval_sec_t $timeval_sec" >> ${OUT}
 405 echo "type Timeval_usec_t $timeval_usec" >> ${OUT}
 406 echo $timeval | \
 407   sed -e 's/type _timeval /type Timeval /' \
 408       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timeval_sec_t/' \
 409       -e 's/tv_usec *[a-zA-Z0-9_]*/Usec Timeval_usec_t/' >> ${OUT}
 410 timespec=`grep '^type _timespec ' gen-sysinfo.go || true`
 411 if test "$timespec" = ""; then
 412   # IRIX 6.5 has __timespec instead.
 413   timespec=`grep '^type ___timespec ' gen-sysinfo.go || true`
 414 fi
 415 timespec_sec=`echo $timespec | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 416 timespec_nsec=`echo $timespec | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 417 echo "type Timespec_sec_t $timespec_sec" >> ${OUT}
 418 echo "type Timespec_nsec_t $timespec_nsec" >> ${OUT}
 419 echo $timespec | \
 420   sed -e 's/^type ___timespec /type Timespec /' \
 421       -e 's/^type _timespec /type Timespec /' \
 422       -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timespec_sec_t/' \
 423       -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timespec_nsec_t/' >> ${OUT}
 424
 425 timestruc=`grep '^type _timestruc_t ' gen-sysinfo.go || true`
 426 if test "$timestruc" != ""; then
 427   timestruc_sec=`echo $timestruc | sed -n -e 's/^.*tv_sec \([^ ]*\);.*$/\1/p'`
 428   timestruc_nsec=`echo $timestruc | sed -n -e 's/^.*tv_nsec \([^ ]*\);.*$/\1/p'`
 429   echo "type Timestruc_sec_t $timestruc_sec" >> ${OUT}
 430   echo "type Timestruc_nsec_t $timestruc_nsec" >> ${OUT}
 431   echo $timestruc | \
 432     sed -e 's/^type _timestruc_t /type Timestruc /' \
 433         -e 's/tv_sec *[a-zA-Z0-9_]*/Sec Timestruc_sec_t/' \
 434         -e 's/tv_nsec *[a-zA-Z0-9_]*/Nsec Timestruc_nsec_t/' >> ${OUT}
 435 fi
 436
 437 # The tms struct.
 438 grep '^type _tms ' gen-sysinfo.go | \
 439     sed -e 's/type _tms/type Tms/' \
 440       -e 's/tms_utime/Utime/' \
 441       -e 's/tms_stime/Stime/' \
 442       -e 's/tms_cutime/Cutime/' \
 443       -e 's/tms_cstime/Cstime/' \
 444     >> ${OUT}
 445
 446 # AIX uses st_timespec struct for stat.
 447 grep '^type _st_timespec ' gen-sysinfo.go | \
 448     sed -e 's/type _st_timespec /type StTimespec /' \
 449       -e 's/tv_sec/Sec/' \
 450       -e 's/tv_nsec/Nsec/' >> ${OUT}
 451
 452 # The stat type.
 453 # Prefer largefile variant if available.
 454 stat=`grep '^type _stat64 ' gen-sysinfo.go || true`
 455 if test "$stat" != ""; then
 456   grep '^type _stat64 ' gen-sysinfo.go
 457 else
 458   grep '^type _stat ' gen-sysinfo.go
 459 fi | sed -e 's/type _stat64/type Stat_t/' \
 460          -e 's/type _stat/type Stat_t/' \
 461          -e 's/st_dev/Dev/' \
 462          -e 's/st_ino/Ino/g' \
 463          -e 's/st_nlink/Nlink/' \
 464          -e 's/st_mode/Mode/' \
 465          -e 's/st_uid/Uid/' \
 466          -e 's/st_gid/Gid/' \
 467          -e 's/st_rdev/Rdev/' \
 468          -e 's/st_size/Size/' \
 469          -e 's/st_blksize/Blksize/' \
 470          -e 's/st_blocks/Blocks/' \
 471          -e 's/st_atim/Atim/' \
 472          -e 's/st_mtim/Mtim/' \
 473          -e 's/st_ctim/Ctim/' \
 474          -e 's/\([^a-zA-Z0-9_]\)_timeval\([^a-zA-Z0-9_]\)/\1Timeval\2/g' \
 475          -e 's/\([^a-zA-Z0-9_]\)_timespec_t\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 476          -e 's/\([^a-zA-Z0-9_]\)_st_timespec_t\([^a-zA-Z0-9_]\)/\1StTimespec\2/g' \
 477          -e 's/\([^a-zA-Z0-9_]\)_timespec\([^a-zA-Z0-9_]\)/\1Timespec\2/g' \
 478          -e 's/\([^a-zA-Z0-9_]\)_timestruc_t\([^a-zA-Z0-9_]\)/\1Timestruc\2/g' \
 479          -e 's/Godump_[0-9] struct { \([^;]*;\) };/\1/g' \
 480        >> ${OUT}
 481
 482 # The directory searching types.
 483 # Prefer largefile variant if available.
 484 dirent=`grep '^type _dirent64 ' gen-sysinfo.go || true`
 485 if test "$dirent" != ""; then
 486   grep '^type _dirent64 ' gen-sysinfo.go
 487 else
 488   grep '^type _dirent ' gen-sysinfo.go
 489 fi | sed -e 's/type _dirent64/type Dirent/' \
 490          -e 's/type _dirent/type Dirent/' \
 491          -e 's/d_name \[0+1\]/d_name [0+256]/' \
 492          -e 's/d_name/Name/' \
 493          -e 's/]int8/]byte/' \
 494          -e 's/d_ino/Ino/' \
 495          -e 's/d_namlen/Namlen/' \
 496          -e 's/d_off/Off/' \
 497          -e 's/d_reclen/Reclen/' \
 498          -e 's/d_type/Type/' \
 499       >> ${OUT}
 500 echo "type DIR _DIR" >> ${OUT}
 501
 502 # Values for d_type field in dirent.
 503 grep '^const _DT_' gen-sysinfo.go |
 504   sed -e 's/^\(const \)_\(DT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 505
 506 # The rusage struct.
 507 rusage=`grep '^type _rusage struct' gen-sysinfo.go`
 508 if test "$rusage" != ""; then
 509   # Remove anonymous unions from GNU/Linux <bits/resource.h>.
 510   rusage=`echo $rusage | sed -e 's/Godump_[0-9][0-9]* struct {\([^}]*\)};/\1/g'`
 511   rusage=`echo $rusage | sed -e 's/type _rusage struct //' -e 's/[{}]//g'`
 512   rusage=`echo $rusage | sed -e 's/^ *//'`
 513   nrusage=
 514   while test -n "$rusage"; do
 515     field=`echo $rusage | sed -e 's/^\([^;]*\);.*$/\1/'`
 516     rusage=`echo $rusage | sed -e 's/^[^;]*; *\(.*\)$/\1/'`
 517     # Drop the leading ru_, capitalize the next character.
 518     field=`echo $field | sed -e 's/^ru_//'`
 519     f=`echo $field | sed -e 's/^\(.\).*$/\1/'`
 520     r=`echo $field | sed -e 's/^.\(.*\)$/\1/'`
 521     f=`echo $f | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
 522     # Fix _timeval _timespec, and _timestruc_t.
 523     r=`echo $r | sed -e s'/ _timeval$/ Timeval/'`
 524     r=`echo $r | sed -e s'/ _timespec$/ Timespec/'`
 525     r=`echo $r | sed -e s'/ _timestruc_t$/ Timestruc/'`
 526     field="$f$r"
 527     nrusage="$nrusage $field;"
 528   done
 529   echo "type Rusage struct {$nrusage }" >> ${OUT}
 530 else
 531   echo "type Rusage struct {}" >> ${OUT}
 532 fi
 533
 534 # The RUSAGE constants.
 535 grep '^const _RUSAGE_' gen-sysinfo.go | \
 536   sed -e 's/^\(const \)_\(RUSAGE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 537
 538 # The utsname struct.
 539 grep '^type _utsname ' gen-sysinfo.go | \
 540     sed -e 's/_utsname/Utsname/' \
 541       -e 's/sysname/Sysname/' \
 542       -e 's/nodename/Nodename/' \
 543       -e 's/release/Release/' \
 544       -e 's/version/Version/' \
 545       -e 's/machine/Machine/' \
 546       -e 's/domainname/Domainname/' \
 547     >> ${OUT}
 548
 549 # The iovec struct.
 550 iovec=`grep '^type _iovec ' gen-sysinfo.go`
 551 iovec_len=`echo $iovec | sed -n -e 's/^.*iov_len \([^ ]*\);.*$/\1/p'`
 552 echo "type Iovec_len_t $iovec_len" >> ${OUT}
 553 echo $iovec | \
 554     sed -e 's/_iovec/Iovec/' \
 555       -e 's/iov_base/Base/' \
 556       -e 's/iov_len *[a-zA-Z0-9_]*/Len Iovec_len_t/' \
 557     >> ${OUT}
 558
 559 # The msghdr struct.
 560 msghdr=`grep '^type _msghdr ' gen-sysinfo.go`
 561 msghdr_controllen=`echo $msghdr | sed -n -e 's/^.*msg_controllen \([^ ]*\);.*$/\1/p'`
 562 echo "type Msghdr_controllen_t $msghdr_controllen" >> ${OUT}
 563 echo $msghdr | \
 564     sed -e 's/_msghdr/Msghdr/' \
 565       -e 's/msg_name/Name/' \
 566       -e 's/msg_namelen/Namelen/' \
 567       -e 's/msg_iov/Iov/' \
 568       -e 's/msg_iovlen/Iovlen/' \
 569       -e 's/_iovec/Iovec/' \
 570       -e 's/msg_control/Control/' \
 571       -e 's/msg_controllen *[a-zA-Z0-9_]*/Controllen Msghdr_controllen_t/' \
 572       -e 's/msg_flags/Flags/' \
 573     >> ${OUT}
 574
 575 # The MSG_ flags for Msghdr.
 576 grep '^const _MSG_' gen-sysinfo.go | \
 577   sed -e 's/^\(const \)_\(MSG_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 578
 579 # The cmsghdr struct.
 580 cmsghdr=`grep '^type _cmsghdr ' gen-sysinfo.go`
 581 if test -n "$cmsghdr"; then
 582   cmsghdr_len=`echo $cmsghdr | sed -n -e 's/^.*cmsg_len \([^ ]*\);.*$/\1/p'`
 583   echo "type Cmsghdr_len_t $cmsghdr_len" >> ${OUT}
 584   echo "$cmsghdr" | \
 585       sed -e 's/_cmsghdr/Cmsghdr/' \
 586         -e 's/cmsg_len *[a-zA-Z0-9_]*/Len Cmsghdr_len_t/' \
 587         -e 's/cmsg_level/Level/' \
 588         -e 's/cmsg_type/Type/' \
 589         -e 's/\[\]/[0]/' \
 590       >> ${OUT}
 591 fi
 592
 593 # The SCM_ flags for Cmsghdr.
 594 grep '^const _SCM_' gen-sysinfo.go | \
 595   sed -e 's/^\(const \)_\(SCM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 596
 597 # The ucred struct.
 598 upcase_fields "_ucred" "Ucred" >> ${OUT} || true
 599
 600 # The ip_mreq struct.
 601 grep '^type _ip_mreq ' gen-sysinfo.go | \
 602     sed -e 's/_ip_mreq/IPMreq/' \
 603       -e 's/imr_multiaddr/Multiaddr/' \
 604       -e 's/imr_interface/Interface/' \
 605       -e 's/_in_addr/[4]byte/g' \
 606     >> ${OUT}
 607
 608 # We need IPMreq to compile the net package.
 609 if ! grep 'type IPMreq ' ${OUT} >/dev/null 2>&1; then
 610   echo 'type IPMreq struct { Multiaddr [4]byte; Interface [4]byte; }' >> ${OUT}
 611 fi
 612
 613 # The ipv6_mreq struct.
 614 grep '^type _ipv6_mreq ' gen-sysinfo.go | \
 615     sed -e 's/_ipv6_mreq/IPv6Mreq/' \
 616       -e 's/ipv6mr_multiaddr/Multiaddr/' \
 617       -e 's/ipv6mr_interface/Interface/' \
 618       -e 's/_in6_addr/[16]byte/' \
 619     >> ${OUT}
 620
 621 # We need IPv6Mreq to compile the net package.
 622 if ! grep 'type IPv6Mreq ' ${OUT} >/dev/null 2>&1; then
 623   echo 'type IPv6Mreq struct { Multiaddr [16]byte; Interface uint32; }' >> ${OUT}
 624 fi
 625
 626 # The ip_mreqn struct.
 627 grep '^type _ip_mreqn ' gen-sysinfo.go | \
 628     sed -e 's/_ip_mreqn/IPMreqn/' \
 629       -e 's/imr_multiaddr/Multiaddr/' \
 630       -e 's/imr_address/Address/' \
 631       -e 's/imr_ifindex/Ifindex/' \
 632       -e 's/_in_addr/[4]byte/g' \
 633     >> ${OUT}
 634
 635 # We need IPMreq to compile the net package.
 636 if ! grep 'type IPMreqn ' ${OUT} >/dev/null 2>&1; then
 637   echo 'type IPMreqn struct { Multiaddr [4]byte; Interface [4]byte; Ifindex int32 }' >> ${OUT}
 638 fi
 639
 640 # The icmp6_filter struct.
 641 grep '^type _icmp6_filter ' gen-sysinfo.go | \
 642     sed -e 's/_icmp6_filter/ICMPv6Filter/' \
 643       -e 's/data/Data/' \
 644       -e 's/filt/Filt/' \
 645     >> ${OUT}
 646
 647 # We need ICMPv6Filter to compile the syscall package.
 648 if ! grep 'type ICMPv6Filter ' ${OUT} > /dev/null 2>&1; then
 649   echo 'type ICMPv6Filter struct { Data [8]uint32 }' >> ${OUT}
 650 fi
 651
 652 # The ip6_mtuinfo struct.
 653 grep '^type _ip6_mtuinfo ' gen-sysinfo.go | \
 654     sed -e 's/_ip6_mtuinfo/IPv6MTUInfo/' \
 655       -e 's/ip6m_addr/Addr/' \
 656       -e 's/_sockaddr_in6/RawSockaddrInet6/' \
 657       -e 's/ip6m_mtu/Mtu/' \
 658     >> ${OUT}
 659
 660 # Try to guess the type to use for fd_set.
 661 fd_set=`grep '^type _fd_set ' gen-sysinfo.go || true`
 662 fds_bits_type="_C_long"
 663 if test "$fd_set" != ""; then
 664     fds_bits_type=`echo $fd_set | sed -e 's/.*[]]\([^;]*\); }$/\1/'`
 665 fi
 666 echo "type fds_bits_type $fds_bits_type" >> ${OUT}
 667
 668 # The addrinfo struct.
 669 grep '^type _addrinfo ' gen-sysinfo.go | \
 670     sed -e 's/_addrinfo/Addrinfo/g' \
 671       -e 's/ ai_/ Ai_/g' \
 672     >> ${OUT}
 673
 674 # The addrinfo and nameinfo flags and errors.
 675 grep '^const _AI_' gen-sysinfo.go | \
 676   sed -e 's/^\(const \)_\(AI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 677 grep '^const _EAI_' gen-sysinfo.go | \
 678   sed -e 's/^\(const \)_\(EAI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 679 grep '^const _NI_' gen-sysinfo.go | \
 680   sed -e 's/^\(const \)_\(NI_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 681
 682 # If nothing else defined EAI_OVERFLOW, make sure it has a value.
 683 if ! grep "const EAI_OVERFLOW " ${OUT} >/dev/null 2>&1; then
 684   echo "const EAI_OVERFLOW = 0" >> ${OUT}
 685 fi
 686
 687 # The passwd struct.
 688 grep '^type _passwd ' gen-sysinfo.go | \
 689     sed -e 's/_passwd/Passwd/' \
 690       -e 's/ pw_/ Pw_/g' \
 691     >> ${OUT}
 692
 693 # The group struct.
 694 grep '^type _group ' gen-sysinfo.go | \
 695     sed -e 's/_group/Group/' \
 696       -e 's/ gr_/ Gr_/g' \
 697     >> ${OUT}
 698
 699 # The ioctl flags for the controlling TTY.
 700 grep '^const _TIOC' gen-sysinfo.go | \
 701     grep -v '_val =' | \
 702     sed -e 's/^\(const \)_\(TIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 703 grep '^const _TUNSET' gen-sysinfo.go | \
 704     grep -v '_val =' | \
 705     sed -e 's/^\(const \)_\(TUNSET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 706 # We need TIOCGWINSZ.
 707 if ! grep '^const TIOCGWINSZ' ${OUT} >/dev/null 2>&1; then
 708   if grep '^const _TIOCGWINSZ_val' ${OUT} >/dev/null 2>&1; then
 709     echo 'const TIOCGWINSZ = _TIOCGWINSZ_val' >> ${OUT}
 710   fi
 711 fi
 712 if ! grep '^const TIOCSWINSZ' ${OUT} >/dev/null 2>&1; then
 713   if grep '^const _TIOCSWINSZ_val' ${OUT} >/dev/null 2>&1; then
 714     echo 'const TIOCSWINSZ = _TIOCSWINSZ_val' >> ${OUT}
 715   fi
 716 fi
 717 if ! grep '^const TIOCNOTTY' ${OUT} >/dev/null 2>&1; then
 718   if grep '^const _TIOCNOTTY_val' ${OUT} >/dev/null 2>&1; then
 719     echo 'const TIOCNOTTY = _TIOCNOTTY_val' >> ${OUT}
 720   fi
 721 fi
 722 if ! grep '^const TIOCSCTTY' ${OUT} >/dev/null 2>&1; then
 723   if grep '^const _TIOCSCTTY_val' ${OUT} >/dev/null 2>&1; then
 724     echo 'const TIOCSCTTY = _TIOCSCTTY_val' >> ${OUT}
 725   fi
 726 fi
 727 if ! grep '^const TIOCGPGRP' ${OUT} >/dev/null 2>&1; then
 728   if grep '^const _TIOCGPGRP_val' ${OUT} >/dev/null 2>&1; then
 729     echo 'const TIOCGPGRP = _TIOCGPGRP_val' >> ${OUT}
 730   fi
 731 fi
 732 if ! grep '^const TIOCSPGRP' ${OUT} >/dev/null 2>&1; then
 733   if grep '^const _TIOCSPGRP_val' ${OUT} >/dev/null 2>&1; then
 734     echo 'const TIOCSPGRP = _TIOCSPGRP_val' >> ${OUT}
 735   fi
 736 fi
 737 if ! grep '^const TIOCGPTN' ${OUT} >/dev/null 2>&1; then
 738   if grep '^const _TIOCGPTN_val' ${OUT} >/dev/null 2>&1; then
 739     echo 'const TIOCGPTN = _TIOCGPTN_val' >> ${OUT}
 740   fi
 741 fi
 742 if ! grep '^const TIOCSPTLCK' ${OUT} >/dev/null 2>&1; then
 743   if grep '^const _TIOCSPTLCK_val' ${OUT} >/dev/null 2>&1; then
 744     echo 'const TIOCSPTLCK = _TIOCSPTLCK_val' >> ${OUT}
 745   fi
 746 fi
 747 if ! grep '^const TIOCGDEV' ${OUT} >/dev/null 2>&1; then
 748   if grep '^const _TIOCGDEV_val' ${OUT} >/dev/null 2>&1; then
 749     echo 'const TIOCGDEV = _TIOCGDEV_val' >> ${OUT}
 750   fi
 751 fi
 752 if ! grep '^const TIOCSIG' ${OUT} >/dev/null 2>&1; then
 753   if grep '^const _TIOCSIG_val' ${OUT} >/dev/null 2>&1; then
 754     echo 'const TIOCSIG = _TIOCSIG_val' >> ${OUT}
 755   fi
 756 fi
 757
 758 if ! grep '^const TUNSETNOCSUM' ${OUT} >/dev/null 2>&1; then
 759   if grep '^const _TUNSETNOCSUM_val' ${OUT} >/dev/null 2>&1; then
 760     echo 'const TUNSETNOCSUM = _TUNSETNOCSUM_val' >> ${OUT}
 761   fi
 762 fi
 763
 764 if ! grep '^const TUNSETDEBUG' ${OUT} >/dev/null 2>&1; then
 765   if grep '^const _TUNSETDEBUG_val' ${OUT} >/dev/null 2>&1; then
 766     echo 'const TUNSETDEBUG = _TUNSETDEBUG_val' >> ${OUT}
 767   fi
 768 fi
 769
 770 if ! grep '^const TUNSETIFF' ${OUT} >/dev/null 2>&1; then
 771   if grep '^const _TUNSETIFF_val' ${OUT} >/dev/null 2>&1; then
 772     echo 'const TUNSETIFF = _TUNSETIFF_val' >> ${OUT}
 773   fi
 774 fi
 775
 776 if ! grep '^const TUNSETPERSIST' ${OUT} >/dev/null 2>&1; then
 777   if grep '^const _TUNSETPERSIST_val' ${OUT} >/dev/null 2>&1; then
 778     echo 'const TUNSETPERSIST = _TUNSETPERSIST_val' >> ${OUT}
 779   fi
 780 fi
 781
 782 if ! grep '^const TUNSETOWNER' ${OUT} >/dev/null 2>&1; then
 783   if grep '^const _TUNSETOWNER_val' ${OUT} >/dev/null 2>&1; then
 784     echo 'const TUNSETOWNER = _TUNSETOWNER_val' >> ${OUT}
 785   fi
 786 fi
 787
 788 if ! grep '^const TUNSETLINK' ${OUT} >/dev/null 2>&1; then
 789   if grep '^const _TUNSETLINK_val' ${OUT} >/dev/null 2>&1; then
 790     echo 'const TUNSETLINK = _TUNSETLINK_val' >> ${OUT}
 791   fi
 792 fi
 793
 794 if ! grep '^const TUNSETGROUP' ${OUT} >/dev/null 2>&1; then
 795   if grep '^const _TUNSETGROUP_val' ${OUT} >/dev/null 2>&1; then
 796     echo 'const TUNSETGROUP = _TUNSETGROUP_val' >> ${OUT}
 797   fi
 798 fi
 799
 800 if ! grep '^const TUNGETFEATURES' ${OUT} >/dev/null 2>&1; then
 801   if grep '^const _TUNGETFEATURES_val' ${OUT} >/dev/null 2>&1; then
 802     echo 'const TUNGETFEATURES = _TUNGETFEATURES_val' >> ${OUT}
 803   fi
 804 fi
 805
 806 if ! grep '^const TUNSETOFFLOAD' ${OUT} >/dev/null 2>&1; then
 807   if grep '^const _TUNSETOFFLOAD_val' ${OUT} >/dev/null 2>&1; then
 808     echo 'const TUNSETOFFLOAD = _TUNSETOFFLOAD_val' >> ${OUT}
 809   fi
 810 fi
 811
 812 if ! grep '^const TUNSETTXFILTER' ${OUT} >/dev/null 2>&1; then
 813   if grep '^const _TUNSETTXFILTER_val' ${OUT} >/dev/null 2>&1; then
 814     echo 'const TUNSETTXFILTER = _TUNSETTXFILTER_val' >> ${OUT}
 815   fi
 816 fi
 817
 818 if ! grep '^const TUNGETIFF' ${OUT} >/dev/null 2>&1; then
 819   if grep '^const _TUNGETIFF_val' ${OUT} >/dev/null 2>&1; then
 820     echo 'const TUNGETIFF = _TUNGETIFF_val' >> ${OUT}
 821   fi
 822 fi
 823
 824 if ! grep '^const TUNGETSNDBUF' ${OUT} >/dev/null 2>&1; then
 825   if grep '^const _TUNGETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 826     echo 'const TUNGETSNDBUF = _TUNGETSNDBUF_val' >> ${OUT}
 827   fi
 828 fi
 829
 830 if ! grep '^const TUNSETSNDBUF' ${OUT} >/dev/null 2>&1; then
 831   if grep '^const _TUNSETSNDBUF_val' ${OUT} >/dev/null 2>&1; then
 832     echo 'const TUNSETSNDBUF = _TUNSETSNDBUF_val' >> ${OUT}
 833   fi
 834 fi
 835
 836 if ! grep '^const TUNATTACHFILTER' ${OUT} >/dev/null 2>&1; then
 837   if grep '^const _TUNATTACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 838     echo 'const TUNATTACHFILTER = _TUNATTACHFILTER_val' >> ${OUT}
 839   fi
 840 fi
 841
 842 if ! grep '^const TUNDETACHFILTER' ${OUT} >/dev/null 2>&1; then
 843   if grep '^const _TUNDETACHFILTER_val' ${OUT} >/dev/null 2>&1; then
 844     echo 'const TUNDETACHFILTER = _TUNDETACHFILTER_val' >> ${OUT}
 845   fi
 846 fi
 847
 848 if ! grep '^const TUNGETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 849   if grep '^const _TUNGETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 850     echo 'const TUNGETVNETHDRSZ = _TUNGETVNETHDRSZ_val' >> ${OUT}
 851   fi
 852 fi
 853
 854 if ! grep '^const TUNSETVNETHDRSZ' ${OUT} >/dev/null 2>&1; then
 855   if grep '^const _TUNSETVNETHDRSZ_val' ${OUT} >/dev/null 2>&1; then
 856     echo 'const TUNSETVNETHDRSZ = _TUNSETVNETHDRSZ_val' >> ${OUT}
 857   fi
 858 fi
 859
 860 if ! grep '^const TUNSETQUEUE' ${OUT} >/dev/null 2>&1; then
 861   if grep '^const _TUNSETQUEUE_val' ${OUT} >/dev/null 2>&1; then
 862     echo 'const TUNSETQUEUE = _TUNSETQUEUE_val' >> ${OUT}
 863   fi
 864 fi
 865
 866
 867 if ! grep '^const TUNSETIFINDEX' ${OUT} >/dev/null 2>&1; then
 868   if grep '^const _TUNSETIFINDEX_val' ${OUT} >/dev/null 2>&1; then
 869     echo 'const TUNSETIFINDEX = _TUNSETIFINDEX_val' >> ${OUT}
 870   fi
 871 fi
 872
 873 if ! grep '^const TUNGETFILTER' ${OUT} >/dev/null 2>&1; then
 874   if grep '^const _TUNGETFILTER_val' ${OUT} >/dev/null 2>&1; then
 875     echo 'const TUNGETFILTER = _TUNGETFILTER_val' >> ${OUT}
 876   fi
 877 fi
 878
 879 # The ioctl flags for terminal control
 880 grep '^const _TC[GS]ET' gen-sysinfo.go | grep -v _val | \
 881     sed -e 's/^\(const \)_\(TC[GS]ET[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 882 if ! grep '^const TCGETS' ${OUT} >/dev/null 2>&1; then
 883   if grep '^const _TCGETS_val' ${OUT} >/dev/null 2>&1; then
 884     echo 'const TCGETS = _TCGETS_val' >> ${OUT}
 885   fi
 886 fi
 887 if ! grep '^const TCSETS' ${OUT} >/dev/null 2>&1; then
 888   if grep '^const _TCSETS_val' ${OUT} >/dev/null 2>&1; then
 889     echo 'const TCSETS = _TCSETS_val' >> ${OUT}
 890   fi
 891 fi
 892
 893 # ioctl constants.  Might fall back to 0 if TIOCNXCL is missing, too, but
 894 # needs handling in syscalls.exec.go.
 895 if ! grep '^const _TIOCSCTTY ' gen-sysinfo.go >/dev/null 2>&1; then
 896   if grep '^const _TIOCNXCL ' gen-sysinfo.go >/dev/null 2>&1; then
 897     echo "const TIOCSCTTY = TIOCNXCL" >> ${OUT}
 898   fi
 899 fi
 900
 901 # If nothing else defined TIOCSCTTY, make sure it has a value.
 902 if ! grep "const TIOCSCTTY " ${OUT} >/dev/null 2>&1; then
 903   echo "const TIOCSCTTY = 0" >> ${OUT}
 904 fi
 905
 906 # The nlmsghdr struct.
 907 grep '^type _nlmsghdr ' gen-sysinfo.go | \
 908     sed -e 's/_nlmsghdr/NlMsghdr/' \
 909       -e 's/nlmsg_len/Len/' \
 910       -e 's/nlmsg_type/Type/' \
 911       -e 's/nlmsg_flags/Flags/' \
 912       -e 's/nlmsg_seq/Seq/' \
 913       -e 's/nlmsg_pid/Pid/' \
 914     >> ${OUT}
 915
 916 # The nlmsg flags and operators.
 917 grep '^const _NLM' gen-sysinfo.go | \
 918     sed -e 's/^\(const \)_\(NLM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 919
 920 # NLMSG_HDRLEN is defined as an expression using sizeof.
 921 if ! grep '^const NLMSG_HDRLEN' ${OUT} > /dev/null 2>&1; then
 922   if grep '^const _sizeof_nlmsghdr ' ${OUT} > /dev/null 2>&1; then
 923     echo 'const NLMSG_HDRLEN = (_sizeof_nlmsghdr + (NLMSG_ALIGNTO-1)) &^ (NLMSG_ALIGNTO-1)' >> ${OUT}
 924   fi
 925 fi
 926
 927 # The rtmsg struct.
 928 grep '^type _rtmsg ' gen-sysinfo.go | \
 929     sed -e 's/_rtmsg/RtMsg/' \
 930       -e 's/rtm_family/Family/' \
 931       -e 's/rtm_dst_len/Dst_len/' \
 932       -e 's/rtm_src_len/Src_len/' \
 933       -e 's/rtm_tos/Tos/' \
 934       -e 's/rtm_table/Table/' \
 935       -e 's/rtm_protocol/Protocol/' \
 936       -e 's/rtm_scope/Scope/' \
 937       -e 's/rtm_type/Type/' \
 938       -e 's/rtm_flags/Flags/' \
 939     >> ${OUT}
 940
 941 # The rtgenmsg struct.
 942 grep '^type _rtgenmsg ' gen-sysinfo.go | \
 943     sed -e 's/_rtgenmsg/RtGenmsg/' \
 944       -e 's/rtgen_family/Family/' \
 945     >> ${OUT}
 946
 947 # The routing message flags.
 948 grep '^const _RT_' gen-sysinfo.go | \
 949     sed -e 's/^\(const \)_\(RT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 950 grep '^const _RTA' gen-sysinfo.go | \
 951     sed -e 's/^\(const \)_\(RTA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 952 grep '^const _RTF' gen-sysinfo.go | \
 953     sed -e 's/^\(const \)_\(RTF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 954 grep '^const _RTCF' gen-sysinfo.go | \
 955     sed -e 's/^\(const \)_\(RTCF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 956 grep '^const _RTM' gen-sysinfo.go | \
 957     sed -e 's/^\(const \)_\(RTM[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 958 grep '^const _RTN' gen-sysinfo.go | \
 959     sed -e 's/^\(const \)_\(RTN[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 960 grep '^const _RTPROT' gen-sysinfo.go | \
 961     sed -e 's/^\(const \)_\(RTPROT[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 962
 963 # The ifinfomsg struct.
 964 grep '^type _ifinfomsg ' gen-sysinfo.go | \
 965     sed -e 's/_ifinfomsg/IfInfomsg/' \
 966       -e 's/ifi_family/Family/' \
 967       -e 's/ifi_type/Type/' \
 968       -e 's/ifi_index/Index/' \
 969       -e 's/ifi_flags/Flags/' \
 970       -e 's/ifi_change/Change/' \
 971     >> ${OUT}
 972
 973 # The interface information types and flags.
 974 grep '^const _IFA' gen-sysinfo.go | \
 975     sed -e 's/^\(const \)_\(IFA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 976 grep '^const _IFLA' gen-sysinfo.go | \
 977     sed -e 's/^\(const \)_\(IFLA[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 978 grep '^const _IFF' gen-sysinfo.go | \
 979     sed -e 's/^\(const \)_\(IFF[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 980 grep '^const _IFNAMSIZ' gen-sysinfo.go | \
 981     sed -e 's/^\(const \)_\(IFNAMSIZ[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 982 grep '^const _SIOC' gen-sysinfo.go |
 983     sed -e 's/^\(const \)_\(SIOC[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
 984
 985 # The ifaddrmsg struct.
 986 grep '^type _ifaddrmsg ' gen-sysinfo.go | \
 987     sed -e 's/_ifaddrmsg/IfAddrmsg/' \
 988       -e 's/ifa_family/Family/' \
 989       -e 's/ifa_prefixlen/Prefixlen/' \
 990       -e 's/ifa_flags/Flags/' \
 991       -e 's/ifa_scope/Scope/' \
 992       -e 's/ifa_index/Index/' \
 993     >> ${OUT}
 994
 995 # The rtattr struct.
 996 grep '^type _rtattr ' gen-sysinfo.go | \
 997     sed -e 's/_rtattr/RtAttr/' \
 998       -e 's/rta_len/Len/' \
 999       -e 's/rta_type/Type/' \
1000     >> ${OUT}
1001
1002 # The in_pktinfo struct.
1003 grep '^type _in_pktinfo ' gen-sysinfo.go | \
1004     sed -e 's/_in_pktinfo/Inet4Pktinfo/' \
1005       -e 's/ipi_ifindex/Ifindex/' \
1006       -e 's/ipi_spec_dst/Spec_dst/' \
1007       -e 's/ipi_addr/Addr/' \
1008       -e 's/_in_addr/[4]byte/g' \
1009     >> ${OUT}
1010
1011 # The in6_pktinfo struct.
1012 grep '^type _in6_pktinfo ' gen-sysinfo.go | \
1013     sed -e 's/_in6_pktinfo/Inet6Pktinfo/' \
1014       -e 's/ipi6_addr/Addr/' \
1015       -e 's/ipi6_ifindex/Ifindex/' \
1016       -e 's/_in6_addr/[16]byte/' \
1017     >> ${OUT}
1018
1019 # The termios struct.
1020 grep '^type _termios ' gen-sysinfo.go | \
1021     sed -e 's/_termios/Termios/' \
1022       -e 's/c_iflag/Iflag/' \
1023       -e 's/c_oflag/Oflag/' \
1024       -e 's/c_cflag/Cflag/' \
1025       -e 's/c_lflag/Lflag/' \
1026       -e 's/c_line/Line/' \
1027       -e 's/c_cc/Cc/' \
1028       -e 's/c_ispeed/Ispeed/' \
1029       -e 's/c_ospeed/Ospeed/' \
1030     >> ${OUT}
1031
1032 # The termios constants.
1033 for n in IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC \
1034     IXON IXANY IXOFF IMAXBEL IUTF8 OPOST OLCUC ONLCR OCRNL ONOCR ONLRET \
1035     OFILL OFDEL NLDLY NL0 NL1 CRDLY CR0 CR1 CR2 CR3 CS5 CS6 CS7 CS8 TABDLY \
1036     BSDLY VTDLY FFDLY CBAUD CBAUDEX CSIZE CSTOPB CREAD PARENB PARODD HUPCL \
1037     CLOCAL LOBLK CIBAUD CMSPAR CRTSCTS ISIG ICANON XCASE ECHO ECHOE ECHOK \
1038     ECHONL ECHOCTL ECHOPRT ECHOKE DEFECHO FLUSHO NOFLSH TOSTOP PENDIN IEXTEN \
1039     VINTR VQUIT VERASE VKILL VEOF VMIN VEOL VTIME VEOL2 VSWTCH VSTART VSTOP \
1040     VSUSP VDSUSP VLNEXT VWERASE VREPRINT VDISCARD VSTATUS TCSANOW TCSADRAIN \
1041     TCSAFLUSH TCIFLUSH TCOFLUSH TCIOFLUSH TCOOFF TCOON TCIOFF TCION B0 B50 \
1042     B75 B110 B134 B150 B200 B300 B600 B1200 B1800 B2400 B4800 B9600 B19200 \
1043     B38400 B57600 B115200 B230400 B460800 B500000 B576000 B921600 B1000000 \
1044     B1152000 B1500000 B2000000 B2500000 B3000000 B3500000 B4000000; do
1045
1046     grep "^const _$n " gen-sysinfo.go | \
1047         sed -e 's/^\(const \)_\([^=]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1048 done
1049
1050 # The mount flags
1051 grep '^const _MNT_' gen-sysinfo.go |
1052     sed -e 's/^\(const \)_\(MNT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1053 grep '^const _MS_' gen-sysinfo.go |
1054     sed -e 's/^\(const \)_\(MS_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1055
1056 # The fallocate flags.
1057 grep '^const _FALLOC_' gen-sysinfo.go |
1058     sed -e 's/^\(const \)_\(FALLOC_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1059
1060 # The statfs struct.
1061 # Prefer largefile variant if available.
1062 statfs=`grep '^type _statfs64 ' gen-sysinfo.go || true`
1063 if test "$statfs" != ""; then
1064   grep '^type _statfs64 ' gen-sysinfo.go
1065 else
1066   grep '^type _statfs ' gen-sysinfo.go
1067 fi | sed -e 's/type _statfs64/type Statfs_t/' \
1068          -e 's/type _statfs/type Statfs_t/' \
1069          -e 's/f_type/Type/' \
1070          -e 's/f_bsize/Bsize/' \
1071          -e 's/f_blocks/Blocks/' \
1072          -e 's/f_bfree/Bfree/' \
1073          -e 's/f_bavail/Bavail/' \
1074          -e 's/f_files/Files/' \
1075          -e 's/f_ffree/Ffree/' \
1076          -e 's/f_fsid/Fsid/' \
1077          -e 's/f_namelen/Namelen/' \
1078          -e 's/f_frsize/Frsize/' \
1079          -e 's/f_flags/Flags/' \
1080          -e 's/f_spare/Spare/' \
1081     >> ${OUT}
1082
1083 # The timex struct.
1084 timex=`grep '^type _timex ' gen-sysinfo.go || true`
1085 if test "$timex" = ""; then
1086   timex=`grep '^// type _timex ' gen-sysinfo.go || true`
1087   if test "$timex" != ""; then
1088     timex=`echo $timex | sed -e 's|// ||' -e 's/INVALID-bit-field/int32/g'`
1089   fi
1090 fi
1091 if test "$timex" != ""; then
1092   echo "$timex" | \
1093     sed -e 's/_timex/Timex/' \
1094       -e 's/modes/Modes/' \
1095       -e 's/offset/Offset/' \
1096       -e 's/freq/Freq/' \
1097       -e 's/maxerror/Maxerror/' \
1098       -e 's/esterror/Esterror/' \
1099       -e 's/status/Status/' \
1100       -e 's/constant/Constant/' \
1101       -e 's/precision/Precision/' \
1102       -e 's/tolerance/Tolerance/' \
1103       -e 's/ time / Time /' \
1104       -e 's/tick/Tick/' \
1105       -e 's/ppsfreq/Ppsfreq/' \
1106       -e 's/jitter/Jitter/' \
1107       -e 's/shift/Shift/' \
1108       -e 's/stabil/Stabil/' \
1109       -e 's/jitcnt/Jitcnt/' \
1110       -e 's/calcnt/Calcnt/' \
1111       -e 's/errcnt/Errcnt/' \
1112       -e 's/stbcnt/Stbcnt/' \
1113       -e 's/tai/Tai/' \
1114       -e 's/_timeval/Timeval/' \
1115     >> ${OUT}
1116 fi
1117
1118 # The rlimit struct.
1119 grep '^type _rlimit ' gen-sysinfo.go | \
1120     sed -e 's/_rlimit/Rlimit/' \
1121       -e 's/rlim_cur/Cur/' \
1122       -e 's/rlim_max/Max/' \
1123     >> ${OUT}
1124
1125 # The RLIMIT constants.
1126 grep '^const _RLIMIT_' gen-sysinfo.go |
1127     sed -e 's/^\(const \)_\(RLIMIT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1128 grep '^const _RLIM_' gen-sysinfo.go |
1129     sed -e 's/^\(const \)_\(RLIM_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1130
1131 # The sysinfo struct.
1132 grep '^type _sysinfo ' gen-sysinfo.go | \
1133     sed -e 's/_sysinfo/Sysinfo_t/' \
1134       -e 's/uptime/Uptime/' \
1135       -e 's/loads/Loads/' \
1136       -e 's/totalram/Totalram/' \
1137       -e 's/freeram/Freeram/' \
1138       -e 's/sharedram/Sharedram/' \
1139       -e 's/bufferram/Bufferram/' \
1140       -e 's/totalswap/Totalswap/' \
1141       -e 's/freeswap/Freeswap/' \
1142       -e 's/procs/Procs/' \
1143       -e 's/totalhigh/Totalhigh/' \
1144       -e 's/freehigh/Freehigh/' \
1145       -e 's/mem_unit/Unit/' \
1146     >> ${OUT}
1147
1148 # The ustat struct.
1149 grep '^type _ustat ' gen-sysinfo.go | \
1150     sed -e 's/_ustat/Ustat_t/' \
1151       -e 's/f_tfree/Tfree/' \
1152       -e 's/f_tinode/Tinoe/' \
1153       -e 's/f_fname/Fname/' \
1154       -e 's/f_fpack/Fpack/' \
1155     >> ${OUT}
1156 # Force it to be defined, as on some older GNU/Linux systems the
1157 # header file fails when using with <linux/filter.h>.
1158 if ! grep 'type _ustat ' gen-sysinfo.go >/dev/null 2>&1; then
1159   echo 'type Ustat_t struct { Tfree int32; Tinoe uint64; Fname [5+1]int8; Fpack [5+1]int8; }' >> ${OUT}
1160 fi
1161
1162 # The utimbuf struct.
1163 grep '^type _utimbuf ' gen-sysinfo.go | \
1164     sed -e 's/_utimbuf/Utimbuf/' \
1165       -e 's/actime/Actime/' \
1166       -e 's/modtime/Modtime/' \
1167     >> ${OUT}
1168
1169 # The LOCK flags for flock.
1170 grep '^const _LOCK_' gen-sysinfo.go |
1171     sed -e 's/^\(const \)_\(LOCK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1172
1173 # The PRIO constants.
1174 grep '^const _PRIO_' gen-sysinfo.go | \
1175   sed -e 's/^\(const \)_\(PRIO_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1176
1177 # The GNU/Linux LINUX_REBOOT flags.
1178 grep '^const _LINUX_REBOOT_' gen-sysinfo.go |
1179     sed -e 's/^\(const \)_\(LINUX_REBOOT_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1180
1181 # The GNU/Linux sock_filter struct.
1182 grep '^type _sock_filter ' gen-sysinfo.go | \
1183     sed -e 's/_sock_filter/SockFilter/' \
1184       -e 's/code/Code/' \
1185       -e 's/jt/Jt/' \
1186       -e 's/jf/Jf/' \
1187       -e 's/k /K /' \
1188     >> ${OUT}
1189
1190 # The GNU/Linux sock_fprog struct.
1191 grep '^type _sock_fprog ' gen-sysinfo.go | \
1192     sed -e 's/_sock_fprog/SockFprog/' \
1193       -e 's/len/Len/' \
1194       -e 's/filter/Filter/' \
1195       -e 's/_sock_filter/SockFilter/' \
1196     >> ${OUT}
1197
1198 # The GNU/Linux filter flags.
1199 grep '^const _BPF_' gen-sysinfo.go | \
1200   sed -e 's/^\(const \)_\(BPF_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1201
1202 # The GNU/Linux nlattr struct.
1203 grep '^type _nlattr ' gen-sysinfo.go | \
1204     sed -e 's/_nlattr/NlAttr/' \
1205       -e 's/nla_len/Len/' \
1206       -e 's/nla_type/Type/' \
1207     >> ${OUT}
1208
1209 # The GNU/Linux nlmsgerr struct.
1210 grep '^type _nlmsgerr ' gen-sysinfo.go | \
1211     sed -e 's/_nlmsgerr/NlMsgerr/' \
1212       -e 's/error/Error/' \
1213       -e 's/msg/Msg/' \
1214       -e 's/_nlmsghdr/NlMsghdr/' \
1215     >> ${OUT}
1216
1217 # The GNU/Linux rtnexthop struct.
1218 grep '^type _rtnexthop ' gen-sysinfo.go | \
1219     sed -e 's/_rtnexthop/RtNexthop/' \
1220       -e 's/rtnh_len/Len/' \
1221       -e 's/rtnh_flags/Flags/' \
1222       -e 's/rtnh_hops/Hops/' \
1223       -e 's/rtnh_ifindex/Ifindex/' \
1224     >> ${OUT}
1225
1226 # The GNU/Linux netlink flags.
1227 grep '^const _NETLINK_' gen-sysinfo.go | \
1228   sed -e 's/^\(const \)_\(NETLINK_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1229 grep '^const _NLA_' gen-sysinfo.go | grep -v '_val =' | \
1230   sed -e 's/^\(const \)_\(NLA_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1231
1232 if ! grep '^const NLA_HDRLEN' ${OUT} >/dev/null 2>&1; then
1233   if grep '^const _NLA_HDRLEN_val' ${OUT} >/dev/null 2>&1; then
1234     echo 'const NLA_HDRLEN = _NLA_HDRLEN_val' >> ${OUT}
1235   fi
1236 fi
1237
1238 # The GNU/Linux packet socket flags.
1239 grep '^const _PACKET_' gen-sysinfo.go | \
1240   sed -e 's/^\(const \)_\(PACKET_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1241
1242 # The GNU/Linux inotify_event struct.
1243 grep '^type _inotify_event ' gen-sysinfo.go | \
1244     sed -e 's/_inotify_event/InotifyEvent/' \
1245       -e 's/wd/Wd/' \
1246       -e 's/mask/Mask/' \
1247       -e 's/cookie/Cookie/' \
1248       -e 's/len/Len/' \
1249       -e 's/name/Name/' \
1250       -e 's/\[\]/[0]/' \
1251       -e 's/\[0\]byte/[0]int8/' \
1252     >> ${OUT}
1253
1254 # The GNU/Linux CLONE flags.
1255 grep '^const _CLONE_' gen-sysinfo.go | \
1256   sed -e 's/^\(const \)_\(CLONE_[^= ]*\)\(.*\)$/\1\2 = _\2/' >> ${OUT}
1257 # We need some CLONE constants that are not defined in older versions
1258 # of glibc.
1259 if ! grep '^const CLONE_NEWUSER ' ${OUT} > /dev/null 2>&1; then
1260   echo "const CLONE_NEWUSER = 0x10000000" >> ${OUT}
1261 fi
1262 if ! grep '^const CLONE_NEWNET ' ${OUT} > /dev/null 2>&1; then
1263   echo "const CLONE_NEWNET = 0x40000000" >> ${OUT}
1264 fi
1265
1266 # Struct sizes.
1267 set cmsghdr Cmsghdr ip_mreq IPMreq ip_mreqn IPMreqn ipv6_mreq IPv6Mreq \
1268     ifaddrmsg IfAddrmsg ifinfomsg IfInfomsg in_pktinfo Inet4Pktinfo \
1269     in6_pktinfo Inet6Pktinfo inotify_event InotifyEvent linger Linger \
1270     msghdr Msghdr nlattr NlAttr nlmsgerr NlMsgerr nlmsghdr NlMsghdr \
1271     rtattr RtAttr rtgenmsg RtGenmsg rtmsg RtMsg rtnexthop RtNexthop \
1272     sock_filter SockFilter sock_fprog SockFprog ucred Ucred \
1273     icmp6_filter ICMPv6Filter ip6_mtuinfo IPv6MTUInfo
1274 while test $# != 0; do
1275     nc=$1
1276     ngo=$2
1277     shift
1278     shift
1279     if grep "^const _sizeof_$nc =" gen-sysinfo.go >/dev/null 2>&1; then
1280         echo "const Sizeof$ngo = _sizeof_$nc" >> ${OUT}
1281     fi
1282 done
1283
1284 # In order to compile the net package, we need some sizes to exist
1285 # even if the types do not.
1286 if ! grep 'const SizeofIPMreq ' ${OUT} >/dev/null 2>&1; then
1287     echo 'const SizeofIPMreq = 8' >> ${OUT}
1288 fi
1289 if ! grep 'const SizeofIPv6Mreq ' ${OUT} >/dev/null 2>&1; then
1290     echo 'const SizeofIPv6Mreq = 20' >> ${OUT}
1291 fi
1292 if ! grep 'const SizeofIPMreqn ' ${OUT} >/dev/null 2>&1; then
1293     echo 'const SizeofIPMreqn = 12' >> ${OUT}
1294 fi
1295 if ! grep 'const SizeofICMPv6Filter ' ${OUT} >/dev/null 2>&1; then
1296     echo 'const SizeofICMPv6Filter = 32' >> ${OUT}
1297 fi
1298
1299 # The Solaris 11 Update 1 _zone_net_addr_t struct.
1300 grep '^type _zone_net_addr_t ' gen-sysinfo.go | \
1301     sed -e 's/_in6_addr/[16]byte/' \
1302     >> ${OUT}
1303
1304 # The Solaris 11.4 _flow_arp_desc_t struct.
1305 grep '^type _flow_arp_desc_t ' gen-sysinfo.go | \
1306     sed -e 's/_in6_addr_t/[16]byte/g' \
1307     >> ${OUT}
1308
1309 # The Solaris 11.4 _flow_l3_desc_t struct.
1310 grep '^type _flow_l3_desc_t ' gen-sysinfo.go | \
1311     sed -e 's/_in6_addr_t/[16]byte/g' \
1312     >> ${OUT}
1313
1314 # The Solaris 11.3 _mac_ipaddr_t struct.
1315 grep '^type _mac_ipaddr_t ' gen-sysinfo.go | \
1316     sed -e 's/_in6_addr_t/[16]byte/g' \
1317     >> ${OUT}
1318
1319 # The Solaris 11.3 _mactun_info_t struct.
1320 grep '^type _mactun_info_t ' gen-sysinfo.go | \
1321     sed -e 's/_in6_addr_t/[16]byte/g' \
1322     >> ${OUT}
1323
1324 exit $?